United States Court of Appeals for the Ninth Circuit News & Prediction Market Coverage

Track the latest United States Court of Appeals for the Ninth Circuit news across prediction markets. Prediction News is following 7 active United States Court of Appeals for the Ninth Circuit stories across regulation, legal action, market moves, and platform developments, each clustered from original reporting and summarized for operators, traders, and regulators.

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Frequently Asked Questions

What is the Ninth Circuit doing in the Kalshi sports contracts case?

The Ninth Circuit heard oral arguments on April 16, 2026, in consolidated cases involving Kalshi, Robinhood, and Crypto.com challenging Nevada gaming regulators, and on July 10, 2026, in an appeal by California tribes seeking to block Kalshi's sports contracts on tribal lands.

Did the Ninth Circuit deny Kalshi a stay in the Washington case?

Yes, on May 23, 2026, the Ninth Circuit denied Kalshi's bid to stay a Washington state gambling enforcement action pending appeal, leaving the platform exposed to state-court proceedings.

Will the Ninth Circuit block Kalshi on tribal lands?

A Ninth Circuit panel in the July 10, 2026, hearing signaled openness to blocking Kalshi and Robinhood from offering sports contracts on tribal land, with one judge describing the contracts as sounding like a bet.

How does the Ninth Circuit ruling affect Polymarket?

The Ninth Circuit's May 2026 order denying stays also applied to Polymarket in parallel Nevada and Washington cases, linking both platforms to the same procedural outcome.

What happens if the Ninth Circuit rules against Kalshi?

An adverse ruling could force geoblocking in affected jurisdictions and create a circuit split on federal preemption of state gambling laws for prediction market contracts.